36
Commissioning
8. Date review
Press and then press or to view the data.
6-4. Adjustment and Judgement of Refrigerant Volume
Status
Determination
1
The air exhaust temperature of com
-
pressor is too high
Insufficient refrigerant
2
The low pressure is too low
3
The air return temperature is too high
4
The current is too small
5
The air exhaust temperature of com
-
pressor is too low
Too much refrigerant
6
The air return temperature is too low
7
The current is too big
6-5. Judgement of Water Flow in Water System
User can determine the water flow in air condition water pipeline as below:
• Check if the water flow switch is disconnected. If yes, check whether the water supply switch is open and water refill is finished.
• Check if the inlet/outlet temperature difference of the water system of outdoor unit is too big. If the temperature difference is larger than 10
degrees, check if the water flow is normal.
• Check if the water pressure gauges on the inlet/outlet pipeline are shaking. If yes, please drain the pipeline.
6-6. Non-fault Phenomenon
Phenomenon
Fault Display
Reason
The outdoor fan does not operate during
heating
None
Defrosting
Part of the fan does not operate
None
The heating ambient temperature is higher than 13
℃
; the
cooling ambient temperature is lower than 25
℃
The air condition pump is running when the
unit is off
None
Anti-freezing
The unit does not start after pressing the start
button
None
The set temperature does not meet the energy requirement
for start
Item
Code
Inlet water temperature
080
Outlet water temperature
081
Suction temperature A
087
Default
085
Discharge temperature A-1
105
Discharge temperature A-2
106
Ambient temperature
084
Suction temperature B
088
Default
086
Discharge temperature B-1
107
Discharge temperature B-2
108
Total outlet temperature of modular
083
Suction pressure A (pressure /100kPa)
111
Suction pressure B (pressure /100kPa)
112
Step of EXV A-1 (step/10) / (step/100)
121
Step of EXV A-2 (step/10) / (step/100)
122
Step of EXV B-1 (step/10) / (step/100)
123
Step of EXV B-2 (step/10) / (step/100)
124
Version of single unit controller (fractional part)
129
Version of single unit controller (integer part)
131
IP address in the modular mode
128